Merge tag 'rxrpc-rewrite-20160823-1' of git://git.kernel.org/pub/scm/linux/kernel...

[deliverable/linux.git] / net / ipv4 / af_inet.c

diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
index 55513e654d799f39462e06abaf6be4c9b8792595..989a362814a9ccfb994b454da3929d3e3c1c11eb 100644 (file)
--- a/net/ipv4/af_inet.c
+++ b/net/ipv4/af_inet.c
@@ -211,24 +211,19 @@ int inet_listen(struct socket *sock, int backlog)
         * we can only allow the backlog to be adjusted.
         */
        if (old_state != TCP_LISTEN) {
-               /* Check special setups for testing purpose to enable TFO w/o
-                * requiring TCP_FASTOPEN sockopt.
+               /* Enable TFO w/o requiring TCP_FASTOPEN socket option.
                 * Note that only TCP sockets (SOCK_STREAM) will reach here.
-                * Also fastopenq may already been allocated because this
-                * socket was in TCP_LISTEN state previously but was
-                * shutdown() (rather than close()).
+                * Also fastopen backlog may already been set via the option
+                * because the socket was in TCP_LISTEN state previously but
+                * was shutdown() rather than close().
                 */
-               if ((sysctl_tcp_fastopen & TFO_SERVER_ENABLE) != 0 &&
+               if ((sysctl_tcp_fastopen & TFO_SERVER_WO_SOCKOPT1) &&
+                   (sysctl_tcp_fastopen & TFO_SERVER_ENABLE) &&
                    !inet_csk(sk)->icsk_accept_queue.fastopenq.max_qlen) {
-                       if ((sysctl_tcp_fastopen & TFO_SERVER_WO_SOCKOPT1) != 0)
-                               fastopen_queue_tune(sk, backlog);
-                       else if ((sysctl_tcp_fastopen &
-                                 TFO_SERVER_WO_SOCKOPT2) != 0)
-                               fastopen_queue_tune(sk,
-                                   ((uint)sysctl_tcp_fastopen) >> 16);
-
+                       fastopen_queue_tune(sk, backlog);
                        tcp_fastopen_init_key_once(true);
                }
+
                err = inet_csk_listen_start(sk, backlog);
                if (err)
                        goto out;